package tech.yangzhijie.basic.knowledge.basic;

import java.util.Date;

public class SuperTest extends Date {

    private static final long serialVersionUID = 1L;
    private void test(){
        System.out.println(super.getClass().getName());
    }

    public static void main(String[] args) {
        //new SuperTest().test();
        //System.out.println(13&17);

        String str1 = "111";
        String str2 = new String("111");
        System.out.println(str1 == str2);
    }
}
